Improvement in composite-cork



UNITED STATES PATENT OEEIGEo WILLIAM KING, OF PERTH AMBOY, NEW-JERSEY, ASS'IGNOR TO WILLIAM KING AND COMPANY, OF NEW YORK, N. Y.

IMPROVEMENT IN COMPOSITE-CORK.

Specification forming part of lLetters Patent No. 174,260, dated February 29, 1876 application filed september Q5, i815.

To all whom t may concern: s

Be it known that I, WILLIAM KING, of Perth Amboy, in vthe State ot' New Jersey, have made certain new and useful Improvements in Treating Cork-shavings and Manufacturing Stoppers therefrom 5 and I do.

. hereby declare the following tobe a full and clear description thereof', reference bein g had to the drawin gannexed hereto,in which drawin g- Figure l represents a block or slab, as produced by my process of treating cork-shavings, and Fig. 2 represents a stopper or cork out from such prepared block or slab.`

My invention has for its object the utilization ofthe shavings and chips of cork wood 'or bark whichare produced when 'Stoppers iron pan or receptacle of the proper .shape and size, I pour or sprinkle over them some suitable glue or cement, and mix it thoroughly, so that the shavings become properly coated on all sides with the'cementing material, after which the mixture is placed under heavy pressure until all the pieces of shavings and chipshave adhered together and a solid block is formed, such as shown by Fig. 1, or any other desired form may be produced by changl ng the shape of the'receptacle or mold. This block, Fig. 1, may be use-d for the purpose of making life-preservers' and other similar articles, or may be cut into any form desired; but I more particularly desire to cover its usefulness as a substance from which to cut stoppers, such as shown by Fig. 2, which may be done either by hand or machinery in the same manner as they are cut from the original bark.'

' As a cement for mixing with the cork-shavings, I have used a solution of shellac dissolved in alcohol, which I have .found to answer the purpose very well 5 but any good cementing substance that will bethin enough to properly smear all parts of the chips and shavings will answer the purpose.

I am aware that cork-wood and other similar4 partially -elastic substances have been pulverzed or reduced to a powder and compounded with caoutchouc or india-rubber; and I do not desire to be understood as intending to claim any such a mixture, mygobject being to save the expense of pulverizing the corkwood by using the shavings and chips in the state they come from the cork-cutter, and to use in their combination any suitable cement, whether elastic or non-elastic, so that the natural buoyancy of the cork-wood is preserved and a cheaper and better article is produced.

Y I clai m- The within-described composition of cork shavings or chips and cement, combined together under pressure, substantially as and A- for the purposes set forth.

WILLIAM KING;

Witnesses:

H. E: SMTTH, I. E. LEAENED. 

